(a) whether the Mahanagar Telephone Nigam Limited has launched a Trump pre-paid mobile services from January 15, 2002 in Delhi and Mumbai;
(b) if so, whether its lower tariff set by MTNL has been welcomed by public in both Delhi and Mumbai;
(c) whether this has forced the private companies to reduce the tariff;
(d) the extent to which the MTNL has achieved success in this regard;
(e) whether there is any proposal to reduce the monthly rent and the pulse rate from three minutes to two minutes; and
(f) if so, the details thereof?